Multiple measurements of blood glucose in the same minute may give different values, either because the blood glucose in the body is in a fluctuating state or because of improper handling. In general, the human body blood sugar is to maintain a dynamic balance, is not static, with the body’s various organs, organizations and changes in the work of the operation, but if the range of fluctuations is not large, it is a normal phenomenon, if the range of fluctuations is large, it may mean that the body’s blood glucose regulation of the abnormality. In addition, there are many factors affecting fingertip blood glucose monitoring, such as whether the amount of fingertip blood used is sufficient when measuring fingertip blood glucose, and whether the fingertip blood is extruded or not, all of which can lead to changes in blood glucose. Generally, if the magnitude of the change is not very large, it is normal. Therefore, if patients need to measure their blood glucose, it is recommended that they go to a regular hospital for measurement, or under the guidance of a professional doctor for proper measurement.